Merge branch '39-infrastructure-upgrade-our-go-version-from-v1-19-to-1-21' into 'main'

Resolve "INFRASTRUCTURE :: Upgrade our go version from v1.19 to 1.21"

See merge request !42

go.mod

 module gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils
 
-go 1.19
+go 1.21
 
 require (
 	github.com/MindscapeHQ/raygun4go v1.1.1